lidar

[ lahy-dahr ]

nounElectronics, Optics.

a device similar to radar in principle and operation but using infrared laser light instead of radio waves and capable of detecting particles, distant objects, and varying physical conditions in the atmosphere.

Origin of lidar

1960–65; li(ght¹) + (ra)dar

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

A second-generation — with an identical design but different lidar sensors and few other upgrades — emerged in summer 2019 ahead of its planned commercial launch in Los Angeles.
Uber planning to spin out Postmates’ delivery robot arm | Kirsten Korosec | January 15, 2021 | TechCrunch
Apple’s newest Pro iPhone has even added lidar — complex sensors that use laser lights to map a scene — which could make similar images even more accurate.
For Amazon’s $25 custom T-shirt, your body is a wonderland (of data) | Heather Kelly | January 5, 2021 | Washington Post
With lidar and other depth-sensing systems, we now have the tools to create exact software copies of everywhere and everything on earth.
How a Software Map of the Entire Planet Could Change the World Forever | Aaron Frank | December 27, 2020 | Singularity Hub
Apple is tapping outside partners for elements of the system, including lidar sensors that provide autonomous cars with a real-time, 3-D view of the world, Reuters added.
Apple’s self-driving car is just a few years from reality, report says | Verne Kopytoff | December 21, 2020 | Fortune
Volvo said in May it will start producing vehicles in 2022 that are equipped with lidar and a perception stack developed by Luminar that the automaker will use to deploy an automated driving system for highways.
Daimler invests in lidar company Luminar in push to bring autonomous trucks to highways | Kirsten Korosec | October 30, 2020 | TechCrunch

There are many other important active sensor classes, three of which are active acoustics, lidar and magnetic anomaly detectors.
Shock and Awe | Harlan K. Ullman
lidar detects shape directly and shape fluctuations such as vibration and motion and has proven very hard to spoof.
Shock and Awe | Harlan K. Ullman
Islamabad is the starting-point for both the lidar valley and Martand, and here the house-boat may be left.
Kashmir | Sir Francis Edward Younghusband
A favourite side-valley is the lidar, for which the road takes off from the main valley at Bijbehara.
Kashmir | Sir Francis Edward Younghusband
And so, in marches of about ten miles a day, we came to Pahlgam on the banks of the dancing lidar.
The Ninth Vibration And Other Stories | L. Adams Beck

lidar

[ lī′där ]

A method of detecting distant objects and determining their position, velocity, or other characteristics by analysis of pulsed laser light reflected from their surfaces. Lidar operates on the same principles as radar and sonar.
The equipment used in such detection. See also Doppler effect radar sonar.

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